• 209 



ON A COLLECTION OF FEKNS MADE BY DR. BECCAEI 



IN WESTERN SUMATRA. 



By J. G. Baker, F.R.S. 



In the months of June and July, 1878, Dr. Beccari paid a" visit 

 to the west side of Sumatra, and made a large collection of plants 

 in the province of Padang, especially on Mount Singalan, which 

 attains the temperate region. As he has very kindly sent me the 

 first set of his ferns for examination and determination, and given 

 us specimens of nearly all of them for the Kew herbarium, I pro- 

 pose in the present paper to give a complete list of the species 

 which he met with. Our previous knowledge of the ferns of the 

 island was very scanty. The collection contains about 140 species, 

 of which twenty prove to be novelties. The numbers are the dis- 

 tribution-numbers of Dr. Beccari's collection. Where there is no 

 number, only a single example was gathered. For the new 

 species, the numbers in brackets indicate their position in the 

 sequence followed in our ' Svnopsis Filicum.' 



426. Gleichenia arachnoidea, Mett. Mt. Singalan, above 2oOO 



metres. 



456. a. vxdcanica, Blume. With the last. 



457. G. vestita, Bluine. With the two last. 



438 (86*). Cyathea suhateana, Baker, n. sp. Fronds ample, 

 tripinnate, with the main rachis and that of the pinnae destitute 

 of prickles, but densely clothed with ferruginous tomentum and 

 large linear acuminate red-brown membranous scales. Jinnee 

 oblong-lanceolate, l*-2 ft. long, 5-6 in. broad; pinnules lanceolate, 

 sessile, 8-9 lines broad, cut down to the rachis into hgulate obtuse 

 entire tertiary lobes * in. broad. Veins moderately distinct, H-iu- 

 jugate, all except the uppermost once or twice forked. Aexrare 

 fiim; both surface green. Sori crowded, filling up ne arly 'the 

 whole of the space between the midrib and margin of the jrcrtoary 

 segments, but mainly restricted to their lower half. Anvolurae 

 large, very fragile, breaking up irregularly. Mount Sm^lan, 

 above 1700 metres. Near C. crenulata, Blume ftom_ which it 

 differs by its entire tertiary segments, densely scaly and tomentose 



rachises, &c. v j 



489 (44*). Cyathea schizochlamys, Baker, n. sp. * r ? nc f 

 ample, tripinnate, firm and subrigid in texture gree a on both 

 sides, thinly tomentose and clothed with small linear a«^te 

 scales on the unprickly main rachis, and that of the pmme 

 densely clothed with small ovate-lanceolate ~*^»*~ ^ . 

 the midribs of the pinna* and tertiary segments on the under 

 surface. Pinna, oblong-lanceolate, 1* ft. long, 5 ~ b J\2 t te 

 Pumules lanceolate, sefsile, f-f in. broad, MWJ**"^ ™ 

 Middle to the apex, cut down to the midrib into In ea i ent xe or 

 f arely cumulate tertiary segments about a line ^'^* * ™ 

 tjnct space between them. Veins 9-10-jugate ^ *;^i*X 

 th « base. Sori placed close to the midrib. ^f* ^£j 

 membranous, soon slitting down to the base. Woods of Mount 



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